Pion WebRTC VS SIPSorcery

Hey HN,

For the past couple of years I have been working on open source software[0] + a free book[1] to make WebRTC easier. I am trying to find the other gaps in the space. Would love to hear what people find difficult about it still!

Even if you don't have a solution would be great just to get a feel for where people are at in the space.

[0] https://github.com/pion/webrtc

[1] https://webrtcforthecurious.com

I started (but many many others contributed) to the Go implementation of WebRTC Pion WebRTC https://github.com/pion/webrtc

Along the way I worked on a Go implemenation of DTLS that gets used on its own a bit https://github.com/pion/dtls

In another life I wrote Therac https://github.com/sean-der/therac. A PHP debugger that was viewable from a browser. I was a remote at the time (2015) and it was a great tool to use with others.

I also wrote fail2web https://github.com/sean-der/fail2web a web frontend to fail2ban

I'm currently building a new product with .NET 5 that creates a WebRTC data channel with clients and also sends them video over WebRTC. In preparation, I evaluated the current WebRTC landscape. The gist is that almost all WebRTC implementations are in other languages (usually C++), so native interop is nearly unavoidable if you want to use C#. I ultimately decided to create a small native library (.so file) using the excellent Pion WebRTC library for Go and then created a C# wrapper for it using C#'s native interop APIs (e.g. DllImport, Marshal.GetFunctionPointerForDelegate()). So far this has been working well and I have both data communication and video streams working, but I should add the caveat that I haven't shipped the service to production yet (I'm still a couple months of development away from that).

I meant to mention: I thought about creating an open-source library for the Pion wrapper, but it's currently quite specific to my application in order to reduce the number of calls needed from C# to Go and vice versa. Perhaps I'll write a blog post in the future, though. In the meantime, the approach I took was to start with one of Pion's examples and then turn it into a static library by using cgo to export functions with C linkage and building it as a shared library like this:

Your best bet would be GStreamer or ffmpeg. I made a simple example using Pion WebRTC here